From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: Re: [PATCH, for-4.19] dma-mapping: add the missing
	ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration
Date: Fri, 14 Sep 2018 17:51:50 +0200
Message-ID: <20180914155150.GA30438@lst.de>
References: <20180911090049.10747-1-hch@lst.de> <20180914100842.GA23696@lst.de>
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To: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, paul.burton-8NJIiSa5LzA@public.gmane.org, Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
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On Fri, Sep 14, 2018 at 04:44:15PM +0100, Robin Murphy wrote:
> On 14/09/18 11:08, Christoph Hellwig wrote:
>> Aby chance to get a review for this?
>
> So without this, the select does nothing, 
> CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU_ALL is never defined, and BMIPS gets the 
> static inline stub and never flushes the RAC when it should?

Exactly!